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Finding the Fourth Proportional to 13,361.58, 18,433.14 and 8,053.38

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Solution

The fourth proportional to 13,361.58, 18,433.14 and 8,053.38 is: 11,110.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361.58 : 18,433.14 = 8,053.38 : x
  2. Step 2: Convert to fraction form
    13,361.58/18,433.14 = 8,053.38/x
  3. Step 3: Cross multiply
    13,361.58x = 18,433.14 × 8,053.38
  4. Step 4: Simplify right side
    13,361.58x = 148,449,081.01
  5. Step 5: Solve for x
    x = 148,449,081.01/13,361.58
  6. Step 6: Final answer
    x = 11,110.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.